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.Question 1Which of the following statements is most correct about Atomic Force Microscopy (AFM)?1 pointAFM can visualize unfixed specimens in water or buffer.AFM moves a very sharp tip over the surface of the specimen to "feel" its shape.AFM can visualize protein bound to DNA molecules.

Question

.Question 1Which of the following statements is most correct about Atomic Force Microscopy (AFM)?1 pointAFM can visualize unfixed specimens in water or buffer.AFM moves a very sharp tip over the surface of the specimen to "feel" its shape.AFM can visualize protein bound to DNA molecules.

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Solution

All of the statements are correct about Atomic Force Microscopy (AFM).

  1. AFM can visualize unfixed specimens in water or buffer: This is true. AFM is capable of imaging specimens in their natural environments, such as in water or buffer solutions. This is a significant advantage of AFM over other microscopy techniques that require specimens to be in a vacuum or dry state.

  2. AFM moves a very sharp tip over the surface of the specimen to "feel" its shape: This is also true. AFM works by scanning a very sharp tip over the surface of the specimen. The tip is attached to a cantilever that deflects as the tip moves over the surface features. This deflection is measured and used to create an image of the surface.

  3. AFM can visualize protein bound to DNA molecules: This is true as well. AFM can be used to study interactions between biological molecules, such as proteins and DNA. It can provide detailed images of these interactions at a molecular level.

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